Wow, I had no idea that you'd be required to deal with Dometic, I would have assumed that Winnebago would take care of it under their warranty.
Make sure you do something to protect your trailer from the leaking slide. Gorilla tape is one option. Another, that I've used for temporary leak repairs is Nashua Extreme Weather HVAC Foil Tape:
https://www.homedepot.com/p/Nashua-T...7801/100507541
The advantage of it is that its adhesive isn't as hard to remove as Gorilla Tape's.
However, it's tensile strength is less.